Gary "Magic" Marker (May 23, 1943 – December 8, 2015) was an American bass guitarist and recording engineer, best known for his involvement in various psychedelic rock bands of the 1960s.
A bass player with jazz leanings, who had studied at Berklee College of Music,[1] Marker was a member of the Rising Sons between 1964 and 1966, along with Ry Cooder and Taj Mahal.
He stood in for Jerry Handley on bass at live shows during 1964–67 and joined the Magic Band for a short spell in 1968–69 ("Moonlight On Vermont" and "Veteran's Day Poppy" from Trout Mask Replica are the only two surviving tracks which feature his bass playing; a third track, a reworking of 'Kandy Korn', has disappeared).
In 1978, he featured on an album by Juicy Groove, alongside vocalist Michael Rainbow Neal (ex-Seeds), guitarists Mars Bonfire (ex-Steppenwolf), Elliot Ingber (ex-Mothers of Invention and Magic Band) and drummer Thundercloud, son of former bandmate Ed Cassidy.
He retired from the music business but maintained an active interest (especially in Beefheart-related matters) until his death at the age of 72 on December 8, 2015, from a stroke.